This chapter is a bit unorthodox, it's 98% dialogue with a few actions put it between.
I made one person talk with regular lettering, and the other in italics so that you don't get messed up on who's saying what.
Genre: General/Humor(i think? maybe? possibly?)
Characters: You have to guess, cause it's more fun that way :P
"You need to stop."
"I won't."
"It's bad for your health."
"And your habit's not?"
"You're going to end up with diabetes, the way you're eating."
"Look who's talking, Mr. Lung Disease. At least I could live with diabetes; lung disease can kill you."
"It's a necessary risk I will take if it means I can keep relaxed in stressful situations."
"Uh huh, and how is consuming large quantities of sugar to keep alert any different than that?"
"It just is."
"That's no reason! This is what I get from the 'adult'..."
"You can't change the fact that I'm older and in charge of you."
"You're not in charge of me! No one's in charge of me!"
"I believe that a certain someone would beg to differ."
"Leave him out of this!"
"As you wish, but it doesn't change the fact that I'm right, and that you have to stop eating that sugary food."
"You can't make me!"
"Sure I can."
"No, you can't! I'll just sneak it behind your back!"
"Not if I eat it all first."
"Hah, now there's an idea!"
"What is?"
"I'll stop eating the sugar if, and only if, you can go one day on my diet and say it doesn't boost your brain power; cause I swear it does."
"Deal-"
Grabs the cigarette pack off the table.
"Hey! Those are my smokes!"
"You don't get these; it'll mess up the experiment. For one day you will have my addiction, and for that same day I'll have yours."
"But-"
"No buts. Only 23 hours and 58 minutes left."
"You're not old enough to be smoking!"
Ignores the comment and closes door behind them.
"Great, just great."
Takes a bite and cringes slightly.
"Only 23 hours, 56 minutes, and a kitchen full of sweets to go..."
23 hours and 51 minutes later...
Enters the room, smoking a cigarette.
"So, only five minutes left. I can't believe you made it; I thought you'd give up hours ago."
"I think I may have been wrong about this whole situation."
"Oh? How so?"
"It seems that you were right-"
"Ooo, say it again!"
Sighs.
"You were right."
"Haha, victory is mine!"
Cackles deviously, then takes a deep breath calming themselves.
"Okay, I'm done. You may continue on what it is exactly that I was right about."
"You were right about the sugar. I have found that it speeds up my brains processing abilities and I can work twice as fast as I could before. While the cigarettes did help alleviate some stress, the sugar gives me the energy to work right through it. I believe that I have accidentally found a more beneficial addiction."
"Does that mean you're going to stop smoking?"
"Yes, I believe that does."
"Good. Then, can I have these?"
"Why!"
"Cause I find that they're better than the sugar."
"How can smoke be better than sugar?"
"Well, I found out that, though the sugar keeps me more alert and gives me faster reflexes, the cigarettes calm me down and I can focus more clearly; ultimately doing a better job than I was before."
Thinks for a moment.
"So, based on what you're saying, we both just switched addictions for a bet, and found that we actually like it better, even though we wanted the other to stop it in the first place."
"Yeah, how's that for irony."
Funny? Maybe not...
Anyways, who do you think is who? :P